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Sopa K. MANAGEMENT MODEL FOR DEVELOPING THE SCHOOL’S EDUCATIONAL QUALITY ASSURANCE SYSTEM PA HUNG SUBDISTRICT ADMINISTRATIVE ORGANIZATION SCHOOL, PHAN, CHIANG RAI PROVINCE. JSC [internet]. 2024 Mar. 31 [cited 2026 Oct. 11];8(3):38-47. available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/271795